﻿using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;
using Maticsoft.DBUtility;//Please add references
namespace Token.Piker.DAL
{
    /// <summary>
    /// 数据访问类:TagDAL
    /// </summary>
    public partial class TagDAL
    {
        public TagDAL()
        { }
        #region  BasicMethod

        /// <summary>
        /// 得到最大ID
        /// </summary>
        public int GetMaxId()
        {
            return DbHelperSQL.GetMaxID("ID", "t_Tag");
        }

        /// <summary>
        /// 是否存在该记录
        /// </summary>
        public bool Exists(string TagName, int ID)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from t_Tag");
            strSql.Append(" where TagName=@TagName and ID=@ID ");
            SqlParameter[] parameters = {
					new SqlParameter("@TagName", SqlDbType.VarChar,20),
					new SqlParameter("@ID", SqlDbType.Int,4)			};
            parameters[0].Value = TagName;
            parameters[1].Value = ID;

            return DbHelperSQL.Exists(strSql.ToString(), parameters);
        }


        /// <summary>
        /// 增加一条数据
        /// </summary>
        public int Add(Token.Piker.Model.Tag model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("insert into t_Tag(");
            strSql.Append("TagName,Adder,AddTime,Flag)");
            strSql.Append(" values (");
            strSql.Append("@TagName,@Adder,@AddTime,@Flag)");
            strSql.Append(";select @@IDENTITY");
            SqlParameter[] parameters = {
					new SqlParameter("@TagName", SqlDbType.VarChar,20),
					new SqlParameter("@Adder", SqlDbType.Int,4),
					new SqlParameter("@AddTime", SqlDbType.DateTime),
					new SqlParameter("@Flag", SqlDbType.Int,4)};
            parameters[0].Value = model.TagName;
            parameters[1].Value = model.Adder;
            parameters[2].Value = model.AddTime;
            parameters[3].Value = model.Flag;

            object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
            if (obj == null)
            {
                return 0;
            }
            else
            {
                return Convert.ToInt32(obj);
            }
        }
        /// <summary>
        /// 更新一条数据
        /// </summary>
        public bool Update(Token.Piker.Model.Tag model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("update t_Tag set ");
            strSql.Append("Adder=@Adder,");
            strSql.Append("AddTime=@AddTime,");
            strSql.Append("Flag=@Flag");
            strSql.Append(" where ID=@ID");
            SqlParameter[] parameters = {
					new SqlParameter("@Adder", SqlDbType.Int,4),
					new SqlParameter("@AddTime", SqlDbType.DateTime),
					new SqlParameter("@Flag", SqlDbType.Int,4),
					new SqlParameter("@ID", SqlDbType.Int,4),
					new SqlParameter("@TagName", SqlDbType.VarChar,20)};
            parameters[0].Value = model.Adder;
            parameters[1].Value = model.AddTime;
            parameters[2].Value = model.Flag;
            parameters[3].Value = model.ID;
            parameters[4].Value = model.TagName;

            int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }

        /// <summary>
        /// 删除一条数据
        /// </summary>
        public bool Delete(int ID)
        {

            StringBuilder strSql = new StringBuilder();
            strSql.Append("delete from t_Tag ");
            strSql.Append(" where ID=@ID");
            SqlParameter[] parameters = {
					new SqlParameter("@ID", SqlDbType.Int,4)
			};
            parameters[0].Value = ID;

            int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }
        /// <summary>
        /// 删除一条数据
        /// </summary>
        public bool Delete(string TagName, int ID)
        {

            StringBuilder strSql = new StringBuilder();
            strSql.Append("delete from t_Tag ");
            strSql.Append(" where TagName=@TagName and ID=@ID ");
            SqlParameter[] parameters = {
					new SqlParameter("@TagName", SqlDbType.VarChar,20),
					new SqlParameter("@ID", SqlDbType.Int,4)			};
            parameters[0].Value = TagName;
            parameters[1].Value = ID;

            int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }
        /// <summary>
        /// 批量删除数据
        /// </summary>
        public bool DeleteList(string IDlist)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("delete from t_Tag ");
            strSql.Append(" where ID in (" + IDlist + ")  ");
            int rows = DbHelperSQL.ExecuteSql(strSql.ToString());
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }


        /// <summary>
        /// 得到一个对象实体
        /// </summary>
        public Token.Piker.Model.Tag GetModel(int ID)
        {

            StringBuilder strSql = new StringBuilder();
            strSql.Append("select  top 1 ID,TagName,Adder,AddTime,Flag from t_Tag ");
            strSql.Append(" where ID=@ID");
            SqlParameter[] parameters = {
					new SqlParameter("@ID", SqlDbType.Int,4)
			};
            parameters[0].Value = ID;

            Token.Piker.Model.Tag model = new Token.Piker.Model.Tag();
            DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
            if (ds.Tables[0].Rows.Count > 0)
            {
                return DataRowToModel(ds.Tables[0].Rows[0]);
            }
            else
            {
                return null;
            }
        }


        /// <summary>
        /// 得到一个对象实体
        /// </summary>
        public Token.Piker.Model.Tag DataRowToModel(DataRow row)
        {
            Token.Piker.Model.Tag model = new Token.Piker.Model.Tag();
            if (row != null)
            {
                if (row["ID"] != null && row["ID"].ToString() != "")
                {
                    model.ID = int.Parse(row["ID"].ToString());
                }
                if (row["TagName"] != null)
                {
                    model.TagName = row["TagName"].ToString();
                }
                if (row["Adder"] != null && row["Adder"].ToString() != "")
                {
                    model.Adder = int.Parse(row["Adder"].ToString());
                }
                if (row["AddTime"] != null && row["AddTime"].ToString() != "")
                {
                    model.AddTime = DateTime.Parse(row["AddTime"].ToString());
                }
                if (row["Flag"] != null && row["Flag"].ToString() != "")
                {
                    model.Flag = int.Parse(row["Flag"].ToString());
                }
            }
            return model;
        }

        /// <summary>
        /// 获得数据列表
        /// </summary>
        public DataSet GetList(string strWhere)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select ID,TagName,Adder,AddTime,Flag ");
            strSql.Append(" FROM t_Tag ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            return DbHelperSQL.Query(strSql.ToString());
        }

        /// <summary>
        /// 获得前几行数据
        /// </summary>
        public DataSet GetList(int Top, string strWhere, string filedOrder)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select ");
            if (Top > 0)
            {
                strSql.Append(" top " + Top.ToString());
            }
            strSql.Append(" ID,TagName,Adder,AddTime,Flag ");
            strSql.Append(" FROM t_Tag ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            strSql.Append(" order by " + filedOrder);
            return DbHelperSQL.Query(strSql.ToString());
        }

        /// <summary>
        /// 获取记录总数
        /// </summary>
        public int GetRecordCount(string strWhere)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) FROM t_Tag ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            object obj = DbHelperSQL.GetSingle(strSql.ToString());
            if (obj == null)
            {
                return 0;
            }
            else
            {
                return Convert.ToInt32(obj);
            }
        }
        /// <summary>
        /// 分页获取数据列表
        /// </summary>
        public DataSet GetListByPage(string strWhere, string orderby, int startIndex, int endIndex)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("SELECT * FROM ( ");
            strSql.Append(" SELECT ROW_NUMBER() OVER (");
            if (!string.IsNullOrEmpty(orderby.Trim()))
            {
                strSql.Append("order by T." + orderby);
            }
            else
            {
                strSql.Append("order by T.ID desc");
            }
            strSql.Append(")AS Row, T.*  from t_Tag T ");
            if (!string.IsNullOrEmpty(strWhere.Trim()))
            {
                strSql.Append(" WHERE " + strWhere);
            }
            strSql.Append(" ) TT");
            strSql.AppendFormat(" WHERE TT.Row between {0} and {1}", startIndex, endIndex);
            return DbHelperSQL.Query(strSql.ToString());
        }

        /*
        /// <summary>
        /// 分页获取数据列表
        /// </summary>
        public DataSet GetList(int PageSize,int PageIndex,string strWhere)
        {
            SqlParameter[] parameters = {
                    new SqlParameter("@tblName", SqlDbType.VarChar, 255),
                    new SqlParameter("@fldName", SqlDbType.VarChar, 255),
                    new SqlParameter("@PageSize", SqlDbType.Int),
                    new SqlParameter("@PageIndex", SqlDbType.Int),
                    new SqlParameter("@IsReCount", SqlDbType.Bit),
                    new SqlParameter("@OrderType", SqlDbType.Bit),
                    new SqlParameter("@strWhere", SqlDbType.VarChar,1000),
                    };
            parameters[0].Value = "t_Tag";
            parameters[1].Value = "ID";
            parameters[2].Value = PageSize;
            parameters[3].Value = PageIndex;
            parameters[4].Value = 0;
            parameters[5].Value = 0;
            parameters[6].Value = strWhere;	
            return DbHelperSQL.RunProcedure("UP_GetRecordByPage",parameters,"ds");
        }*/

        #endregion  BasicMethod
        #region  ExtensionMethod

        /// <summary>
        /// 取得内容或者风格标签对应的所有相册ID的列表
        /// </summary>
        /// <param name="flag">0-内容标签 1-风格标签</param>
        /// <returns></returns>
        public DataSet GetAllAlbumIDListOfOneTypeOfTag(int flag)
        {
            SqlParameter parameter = new SqlParameter("@Flag", flag);

            string sql = "SELECT DISTINCT Album FROM t_Photo JOIN r_PhotoTag ON t_Photo.ID = r_PhotoTag.PID JOIN t_Tag ON r_PhotoTag.TID = t_Tag.ID WHERE t_Tag.Flag = @Flag  AND Album IS NOT NULL AND Album != ''";
            return DbHelperSQL.Query(sql, parameter);
        }


        /// <summary>
        /// 取得内容或者风格标签对应的所有图片ID的列表
        /// </summary>
        /// <param name="flag">0-内容标签 1-风格标签</param>
        /// <returns></returns>
        public DataSet GetAllPhotoIDListOfOneTypeOfTag(int flag)
        {
            SqlParameter parameter = new SqlParameter("@Flag", flag);

            string sql = "SELECT t_Photo.ID FROM t_Photo JOIN r_PhotoTag ON t_Photo.ID = r_PhotoTag.PID JOIN t_Tag ON r_PhotoTag.TID = t_Tag.ID WHERE t_Tag.Flag = @Flag";
            return DbHelperSQL.Query(sql, parameter);
        }

        /// <summary>
        /// 根据标签ID返回具有该标签的相册的ID列表
        /// </summary>
        /// <param name="tid">标签Id </param>
        /// <returns></returns>
        public DataSet GetAllAlbumIDListOfOneTag(int tid)
        {
            SqlParameter parameter = new SqlParameter("@TID", tid);

            string sql = "SELECT DISTINCT Album FROM t_Photo JOIN r_PhotoTag ON t_Photo.ID = r_PhotoTag.PID WHERE r_PhotoTag.TID = @TID AND Album IS NOT NULL AND Album != ''";
            return DbHelperSQL.Query(sql, parameter);
        }

        /// <summary>
        /// 根据标签ID返回具有该标签的图片的ID列表
        /// </summary>
        /// <param name="tid">标签Id </param>
        /// <returns></returns>
        public DataSet GetAllPhotoIDListOfOneTag(int tid)
        {
            SqlParameter parameter = new SqlParameter("@TID", tid);

            string sql = "SELECT t_Photo.ID FROM t_Photo JOIN r_PhotoTag ON t_Photo.ID = r_PhotoTag.PID WHERE r_PhotoTag.TID = @TID";
            return DbHelperSQL.Query(sql, parameter);
        }

        #endregion  ExtensionMethod
    }
}

